“Google overlays so much within your image asset — they pull in your app icon, an install button, and even your app store rating. If you have a fully designed image asset with text, a call-to-action, and your rating, it's really redundant. I usually tell people: use a stock image. They work just as well and they're free.”

Don't over-design UAC image assets — Google overlays your icon, rating, and install CTA automatically

The instinct to produce polished banner ads for Google UAC is largely wasted effort. Google renders its own overlay (icon, install button, star rating) on top of your image asset, so a heavy design adds clutter rather than conversion. Stock images with simple, clean composition let Google's rendering system do its job — saving creative budget for higher-leverage video formats.